WISI DRA 0505 is an amplifier for 4 polarizations of one satellite and terrestrial signals. With a gain of 26 dB the DRA 0505 is optimally suited for use as line amplifier in multi-switch cascades. The gain can be individually reduced by 10 dB at each input, in order to compensate differences in level between the individual polarizations.

Wisi DRA 0909 is an amplifier for 8 polarizations of two satellite and terrestrial signals. With a gain of 26 dB the DRA 0909 is optimally suited for use as line amplifier in multi-switch cascades. The gain can be individually reduced by 10 dB at each input, in order to compensate differences in level between the individual polarizations.